You can save space and make waste sorting easier by stacking the small PLUGGIS waste sorting bin (8 litres) on top of the large PLUGGIS waste sorting bin (14 litres). http://www.ikea.com/th/en/images/products/pluggis-waste-sorting-bin-white__0148421_PE306782_S4.JPGPLUGGIS Waste sorting bin, whitehttp://www.ikea.com/th/en/catalog/products/60234708/602.347.08THB 349